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MSI MAG 321UPX QD-OLED 32
MSI MAG 321UPX QD-OLED 32
MSI MAG 321UPX QD-OLED 32
MSI MAG 321UPX QD-OLED 32
MSI MAG 321UPX QD-OLED 32
MSI MAG 321UPX QD-OLED 32
MSI MAG 321UPX QD-OLED 32
MSI

MSI MAG 321UPX QD-OLED 32" 4K UHD 240Hz Gaming Monitor

4KUHDHDR

A 32-inch 4K QD-OLED gaming monitor with a 240Hz refresh rate and 0.03ms response time for ultra-smooth visuals.

$749.99*$798.99Save 6%
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*Price sourced from Amazon.com. Last updated:Aug 30, 2026.Price and availability are subject to change — details.

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Overview

The MSI MAG 321UPX QD-OLED represents a convergence of cutting-edge display technologies in a 31.5-inch gaming monitor. Its Quantum Dot OLED panel combines the self-emitting pixel structure of OLED—delivering true blacks and infinite contrast—with quantum dot color enhancement for wide gamut coverage and vivid HDR performance under the True Black HDR 400 standard. Running at a native 3840x2160 resolution with a 240Hz refresh rate, the monitor addresses the longstanding compromise between resolution and speed that has defined the gaming monitor market.

A 0.03ms response time means pixel transitions happen faster than a single frame at 240Hz, effectively eliminating motion blur and ghosting artifacts that plague slower panels. Connectivity includes HDMI and DisplayPort inputs alongside a 15W USB Type-C port for single-cable setups with compatible laptops. The super narrow bezel design maximizes the viewable area within the monitor's 28.27 x 16.46-inch footprint, and MSI's Gaming OSD app provides software-level control over picture profiles, crosshair overlays, and display settings without navigating physical button menus. At 20.1 pounds, the build is substantial but reflects the robust panel and electronics inside.

Key Features

3rd QD-OLED Panel – With stunning image quality and fast response time.

Fastest 0.03ms GtG response time and 240Hz refresh rate.

QD Premium Color – Ensures the color meets the market standard – Delta E≤2.

Incredible HDR visual – VESA DisplayHDR True Black 400.

MSI OLED Care 2.0 – Reduced the risk of OLED burn-in.

Console Mode – Provide HDMI 2.1(4K@240Hz) with a full 48 Gbps bandwidth.

Adjustable Stand – Easily change the position of the monitor for maximum ergonomics.

Specifications

Screen Size
31.5 Inches
Resolution
3840 x 2160 (UHD)
Aspect Ratio
16:9
Panel Type
QD-OLED (Quantum Dot OLED)
Refresh Rate
240 Hz
Response Time
0.03 ms
HDR
True Black HDR 400
Connectivity
HDMI, DisplayPort, 15W USB Type-C
Screen Surface
Glossy
Bezel
Super Narrow
Dimensions
28.27 x 2.72 x 16.46 inches
Weight
20.1 lbs

Frequently Asked Questions

Yes, the monitor includes HDMI connectivity that supports high-refresh-rate gaming from current-generation consoles, alongside DisplayPort for PC use.
The USB Type-C port delivers up to 15W of power, which can trickle-charge some devices but is not sufficient for high-power laptop charging during use.
MSI includes pixel-refreshing features and panel care settings to mitigate static image retention. QD-OLED technology has improved retention resistance over earlier OLED panels, though varying your content and using screen savers during idle periods is still recommended.
The MAG 321UPX supports True Black HDR 400, leveraging the OLED panel's ability to produce perfect blacks for high dynamic range content.
The product specifications focus on the display panel, connectivity, and gaming features. Check MSI's full spec sheet to confirm onboard audio options.

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